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Synchysite

A synonym
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03027260017271926922071.jpg
Synchysite-(Y)

Cuasso al Monte, Varese Province, Lombardy, Italy
07589280017271928986980.jpg
Synchysite-(Ce)

Hopffeldboden, Hopffeld area, Neukirchen am Großvenediger, Zell am See District, Salzburg, Austria
01050460017271926964281.jpg
Synchysite-(Ce), etc.

Oberschrammach glacier, Schrammacher, Finkenberg, Schwaz District, Tyrol, Austria
03027260017271926922071.jpg
Synchysite-(Y)

Cuasso al Monte, Varese Province, Lombardy, Italy
04400140017271926923377.jpg
Synchysite-(Ce)

Hopffeldboden, Hopffeld area, Neukirchen am Großvenediger, Zell am See District, Salzburg, Austria
01050460017271926964281.jpg
Synchysite-(Ce), etc.

Oberschrammach glacier, Schrammacher, Finkenberg, Schwaz District, Tyrol, Austria
03027260017271926922071.jpg
Synchysite-(Y)

Cuasso al Monte, Varese Province, Lombardy, Italy
04400140017271926923377.jpg
Synchysite-(Ce)

Hopffeldboden, Hopffeld area, Neukirchen am Großvenediger, Zell am See District, Salzburg, Austria
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About SynchysiteHide

Formula:
Ca(Ce/Nd/Y/REE)(CO3)2F
Name:
From the Greek σύγχΰσις "synchys" for "confounding" in allusion to its initially being mistaken for parisite.
The name applied to what was believed to be the cerium-dominant species (see Palache et al., Dana 7th ed., vol. II, 287), but was later determined to be Synchysite-(Y).
The very rare neodymium analogue Synchysite-(Nd) was approved in the late 1970s.
The cerium analogue Synchysite-(Ce) was not submitted until 1982 (IMA1982-030).

See also Synchysite Group, which includes huanghoite-(Ce).



Unique IdentifiersHide

Mindat ID:
7450
Long-form identifier:
mindat:1:1:7450:2

Chemistry of SynchysiteHide

Mindat Formula:
Ca(Ce/Nd/Y/REE)(CO3)2F
Element Weights:
Element% weight
Nd26.114 %
Ce25.367 %
O17.379 %
Y16.096 %
Ca7.256 %
C4.349 %
F3.440 %

Calculated from ideal end-member formula.
Elements listed:
C, Ca, Ce, F, Nd, O, Y - search for minerals with similar chemistry

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014866Huanghoite-(Ce)Yang Z M, Pertlik F (1993) Huanghoite-(Ce), BaCe(CO3)2F, from Khibina, Kola peninsula, Russia: Redetermination of the crystal structure with a discussion on space group symmetry Neues Jahrbuch fur Mineralogie, Monatshefte 1993 163-1711993Khibina, Kola Peninsula, Russia0293
0005411Synchysite-(Ce)Wang L, Ni Y, Hughes J M, Bayliss P, Drexler J W (1994) The atomic arrangement of synchysite-(Ce), CeCaF(CO3)2 The Canadian Mineralogist 32 865-8711994Mont Saint-Hilaire, Quebec, Canada0293
CIF Raw Data - click here to close

Synonyms of SynchysiteHide

Other Language Names for SynchysiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
14 photos of Synchysite associated with QuartzSiO2
13 photos of Synchysite associated with AnataseTiO2
8 photos of Synchysite associated with FluoriteCaF2
5 photos of Synchysite associated with CalciteCaCO3
4 photos of Synchysite associated with Chlorite Group
4 photos of Synchysite associated with BrookiteTiO2
4 photos of Synchysite associated with Bastnäsite(Ce/Nd/Y/REE)(CO3)F
3 photos of Synchysite associated with ClinochloreMg5Al(AlSi3O10)(OH)8
3 photos of Synchysite associated with Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
3 photos of Synchysite associated with DolomiteCaMg(CO3)2

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for SynchysiteHide

References for SynchysiteHide

Localities for SynchysiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Afghanistan
 
  • Helmand
    • Reg District
[Synchysite-(Ce)] Asadzadeh et al. (2025)
[Synchysite-(Ce)] Tucker et al. (2012)
Angola
 
  • Huambo Province
    • Bailundo
[Synchysite-(Y)] Orris et al. (2002) +1 other reference
    • Ekunha
[Synchysite-(Y)] Orris et al. (2002)
    • Londuimbali
[Synchysite-(Ce)] Gonçalves +1 other reference
    • Longonjo
Lapido-Loureiro +3 other references
[Synchysite-(Y)] Orris et al. (2002)
  • Huíla Province
    • Quilengues
[Synchysite-(Ce)] ZHENG et al. (2014) +1 other reference
  • Namibe Province
    • Virei
[Synchysite-(Ce)] Torró et al. (2012)
Argentina
 
  • Catamarca Province
    • Sierra de Ancasti
      • El Portezuelo
[Synchysite-(Ce)] Colombo et al. (2011)
Australia
 
  • New South Wales
    • Yancowinna Co.
      • Broken Hill district
[Synchysite-(Ce)] Birch et al. (1987) +1 other reference
  • Northern Territory
    • Central Desert Region
      • Nolans Bore
[Synchysite-(Y)] Huston et al. (2017)
  • Queensland
    • Cloncurry Shire
      • Selwyn District
Munro-Smith (2006)
  • South Australia
    • District Council of Peterborough
      • Paratoo
[Synchysite-(Ce)] Brugger et al. (2006)
    • Mid Murray Council
      • Mannum
        • Reedy Creek
[Synchysite-(Y)] Steve Sorrell Collection
    • Pastoral Unincorporated Area
      • Olympic Dam
[Synchysite-(Ce)] Lottermoser (1995) +2 other references
      • Pernatty
[Synchysite-(Ce)] Habibi et al. (2025)
  • Tasmania
    • Waratah-Wynyard municipality
      • Corinna-Savage River district
[Synchysite-(Ce)] Bottrill et al. (2021)
    • West Coast municipality
      • Queenstown district
        • Darwin
[Synchysite-(Ce)] Unpub data R Bottrill & C Hughes
  • Western Australia
    • Esperance Shire
Sergeev et al. (2024)
Reid et al. (2025)
    • Halls Creek Shire
[Synchysite-(Ce)] Downes et al. (2014)
    • Laverton Shire
      • Mount Weld Station
Chandler et al. (2024)
Austria
 
  • Carinthia
    • Sankt Veit an der Glan District
      • Frauenstein
        • Äußere Wimitz
[Synchysite-(Ce)] Blass et al. (2001)
    • Spittal an der Drau District
      • Mallnitz
[Synchysite-(Ce)] Niedermayr et al. (1995)
- (n.d.)
      • Malta
[Synchysite-(Ce)] Niedermayr et al. (1995)
    • Villach-Land District
      • Fresach
        • Laas
[Synchysite-(Ce)] Brandstätter et al. (1987) +1 other reference
  • Lower Austria
    • Hollabrunn District
      • Maissau
        • Limberg
          • Gänsgraben
[Synchysite-(Ce)] Kolitsch et al. (2018)
    • Neunkirchen District
      • Gloggnitz
[Synchysite-(Ce)] Kolitsch et al. (2016) +1 other reference
  • Salzburg
    • St. Johann im Pongau District
      • Bad Gastein
Strasser (1989)
        • Böckstein
[Synchysite-(Y)] Strasser (1989)
Neschen (n.d.)
Strasser (1989)
[Synchysite Group] collection of Martin Slama
        • Naßfeld valley
Andrew Hodgson Collection
Strasser (1989)
Strasser (1989)
Strasser (1989)
          • Sportgastein
[Synchysite-(Ce)] Franz Bernhard (EDS-analyses of several synchysite samples)
Strasser (1989)
    • Tamsweg District
      • Muhr
        • Rotgülden
          • Muritzen valley
            • Haderlingspitze
[Synchysite-(Ce)] Walter (2010)
        • Schellgaden
Auer (1995)
Strasser (1989)
    • Zell am See District
      • Bramberg am Wildkogel
Strasser (1989)
      • Krimml
        • Rainbach valley
[Synchysite-(Ce)] Steiner&Melcher (2020)
      • Neukirchen am Großvenediger
        • Ascham Alp - Breitfuß - Sonntagskopf area
Strasser (1989)
        • Hopffeld area
[Synchysite-(Ce)] Strasser (1989)
        • Knappenwand area
[Synchysite-(Ce)] - (n.d.)
Strasser (1989)
Strasser (1989)
      • Rauris
[Synchysite-(Ce)] Strasser (1989)
[Synchysite-(Ce)] Strasser (1989)
[Synchysite-(Ce)] Strasser (1989)
  • Styria
    • Bruck-Mürzzuschlag District
      • Kindberg
        • Hadersdorf
C.Auer (2019)
    • Deutschlandsberg District
      • Deutschlandsberg
        • Leibenfeld
[Synchysite-(Ce)] Postl (2007)
  • Tyrol
    • Schwaz District
      • Finkenberg
        • Schrammacher
[Synchysite-(Ce)] Folie et al. (1999)
[Synchysite-(Ce)] Exel et al. (1988) +1 other reference
      • Mayrhofen
Göltl (1988)
  • Upper Austria
    • Schärding District
      • Sankt Florian am Inn
        • Allerding
[Synchysite-(Ce)] Horninger (1936) +1 other reference
Belgium
 
  • Wallonia
    • Luxembourg
      • Bertrix
[Synchysite-(Ce)] Hatert (2002) +2 other references
Bolivia
 
  • Cochabamba
    • Ayopaya Province
Schultz et al. (2004)
Schultz et al. (2004)
  • Santa Cruz
    • Velasco Province
Comin-Chiaramonti et al. (2011)
Brazil
 
  • Minas Gerais
    • Araxá
[Huanghoite-(Ce)] Traversa et al. (2001)
[Huanghoite-(Ce)] Traversa et al. (2001)
  • Pará
    • Canaã dos Carajás
[Synchysite-(Y)] Grainger et al. (2008)
    • Marabá
deMelo et al. (2016)
  • Santa Catarina
    • Correia Pinto
Tamara Reginatto Manfredi et al. (2013)
Comin-Chiaramonti et al. (2008)
  • São Paulo
    • Ilhabela
      • Búzios island
[Synchysite-(Ce)] de Barros Gomes et al. (2017)
    • Itapirapuã Paulista
[Synchysite-(Y)] Orris et al. (2002)
Canada
 
  • British Columbia
    • Cariboo Mining Division
      • Wicheeda Lake
[Huanghoite-(Ce)] Dalsin et al. (2015)
    • Golden Mining Division
      • Canal Flats
[Synchysite-(Ce)] Peatfield (n.d.)
    • Omineca Mining Division
      • Williston Lake
[Huanghoite-(Ce)] Berger et al. (2009)
  • Newfoundland and Labrador
    • Labrador
[Synchysite-(Ce)] Ducharme (2020)
  • Northwest Territories
[Synchysite-(Ce)] Feng et al. (2015)
[Synchysite-(Ce)] Sheard et al. (2012)
    • North Slave Region
      • Blachford Lake alkaline complex
        • Thor Lake syenite complex
[Synchysite-(Ce)] Sheard (2010) +1 other reference
  • Nova Scotia
    • Cumberland Co.
[Synchysite-(Ce)] Pe-Piper +1 other reference
    • Yarmouth Co.
      • Argyle
        • East Kemptville
[Synchysite-(Ce)] Horváth collection - XRD analysis
  • Ontario
    • Greater Sudbury
      • Scadding Township
[Synchysite-(Ce)] Canadian Mineralogist 45
    • Haliburton County
      • Highlands East Township
        • Cardiff Township
[Synchysite-(Ce)] Mounce et al. (2020)
    • Kenora District
      • Carb Lake Area
[Synchysite-(Ce)] SAGE (1983)
    • Nipissing District
Ford et al. (1988)
      • Strathcona Township
MDI Number: MDI31M04SW00079
    • Thunder Bay District
[Synchysite-(Ce)] Mitchell (1991)
      • Killala Lake Area
[Synchysite-(Ce)] users.renegadeisp.com (2022)
Can Mineral February 1997 v. 35 no. 1 ...
      • O'Meara Township
[Synchysite-(Ce)] Platt & Wooley (1990)
  • Québec
    • Chaudière-Appalaches
      • Les Appalaches RCM
        • Thetford Mines
          • Pontbriand
Fredric Schuster
      • Robert-Cliche RCM
        • Tring-Jonction
Dr. Jeff Chiarenzelli
    • Laurentides
      • Deux-Montagnes RCM
[Synchysite-(Ce)] Gold (1969) +1 other reference
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
[Synchysite-(Ce)] CHEANG (1977) +1 other reference
      • Lajemmerais RCM
        • Varennes & St-Amable
[Synchysite-(Ce)] Horváth et al. (1998)
[Synchysite-(Ce)] Horváth et al. (1998)
    • Montréal
[Synchysite-(Ce)] Tarassoff et al. (2006)
    • Nord-du-Québec
      • Jamésie
[Huanghoite-(Ce)] Nadeau et al. (2014)
      • Nunavik
[Synchysite-(Ce)] Laferrière (2011)
[Synchysite-(Ce)] Petrella (2013)
    • Outaouais
      • Les Collines-de-l'Outaouais RCM
        • Val-des-Monts
          • Saint-Pierre-de-Wakefield
            • Lake Saint-Pierre
[Synchysite-(Y)] Hogarth et al. (1974)
      • Pontiac RCM
        • Otter Lake
[Synchysite-(Ce)] Martin et al. (2018)
    • Saguenay-Lac-Saint-Jean
      • Le Fjord-du-Saguenay RCM
        • Saint-Honoré
[Synchysite-(Ce)] Fournier (1993)
[Synchysite-(Ce)] FOURNIER (1993)
China
 
  • Gansu
    • Jiuquan
      • Aksai Co.
[Synchysite-(Ce)] Yu et al. (2023)
    • Wuwei
      • Tianzhu Co.
Zhi Ma et al. (2006)
  • Guangdong
    • Meizhou
      • Mei Co.
[Synchysite-(Ce)] Zhao et al. (2025)
    • Zhaoqing
      • Huaiji County
Feng et al. (2022)
  • Henan
    • Nanyang
      • Xixia County
[Synchysite-(Ce)] Qu et al. (2019)
  • Hubei
    • Shiyan
      • Zhushan Co.
[Synchysite-(Ce)] Li (1982) +3 other references
  • Inner Mongolia
    • Baotou City (Baotou Prefecture)
      • Bayan Obo mining district
        • Bayan Obo
[Huanghoite-(Ce)] Semenov et al. (1961) +3 other references
[Huanghoite-(Ce)] Smith (2007) +2 other references
[Huanghoite-(Ce)] Smith et al. (2000)
          • Dulahala
[Huanghoite-(Ce)] Yang et al. (2003)
    • Tongliao City (Tongliao Prefecture)
      • Jarud Banner (Zalute Co.)
[Synchysite-(Ce)] Wu et al. (2021) +1 other reference
          • Intrusion No. 801
Qiu et al. (2019)
Qiu et al. (2019)
  • Jiangxi
    • Ganzhou
      • Anyuan Co.
[Synchysite-(Ce)] Gong et al. (2023) +1 other reference
      • Chongyi Co.
Yu et al. (2023)
      • Dayu Co.
[Synchysite-(Y)] Rucheng Wang et al. (2003)
      • Dingnan Co.
[Synchysite-(Ce)] Shi et al. (2024)
      • Gan Co.
[Synchysite-(Y)] Zhao et al. (2024)
      • Longnan Co.
[Synchysite-(Ce)] Yunhuai Lin and Shiyang Chen (1985)
[Synchysite-(Ce)] Shi et al. (2024)
      • Quannan Co.
[Synchysite Group] Wenlan Zhang et al. (2006)
      • Xunwu Co.
[Synchysite-(Ce)] Yunhuai Lin (1986)
  • Shaanxi
    • Baoji
      • Taibai County
[Synchysite-(Ce)] Xishun Hu (2009)
    • Shangluo
      • Luonan County
Huang et al. (2024)
    • Weinan
      • Huayin City
Huang et al. (2022)
  • Shandong
    • Linyi
      • Lanling County
[Synchysite-(Ce)] Yang et al. (2025)
  • Sichuan
    • Liangshan Yi
      • Huili County
[Synchysite-(Ce)] Yuanfu Xiao et al. (2010)
      • Mianning County
Congde Chen and Guangping Pu (1991) +2 other references
Czech Republic
 
  • Karlovy Vary Region
    • Karlovy Vary District
[Synchysite-(Ce)] Lapis 2002 (7/8)
  • Liberec Region
    • Česká Lípa District
      • Ralsko
        • Holičky
[Synchysite-(Nd)] Scharm et al. (1983)
[Synchysite-(Ce)] Scharm +7 other references
  • Moravian-Silesian Region
    • Frýdek-Místek District
      • Řepiště
[Synchysite-(Ce)] Matýsek D. (2013)
  • Olomouc Region
    • Prostějov District
[Synchysite-(Ce)] Škoda et al. (2006)
  • Vysočina Region
    • Havlíčkův Brod District
      • Pohled
[Hydroxylsynchysite-(Ce)] DOLNÍČEK et al. (2023)
    • Žďár nad Sázavou District
      • Rožná
Kříbek et al. (2022)
DR Congo
 
  • North Kivu
    • Rutshuru Territory
      • Bwito
[Synchysite-(Ce)] Nasraoui et al. (2000)
Egypt
 
  • Red Sea Governorate
    • Wadi Nugrus
Abdel Gawad et al. (2022)
Finland
 
  • Kainuu
    • Kajaani
Al-Ani et al. (2018)
  • Kymenlaakso
    • Kotka
[Synchysite-(Y)] Lahti Seppo I. 2011. Kotkan ...
  • Lapland
    • Posio
[Synchysite-(Ce)] Al-Ani et al. (2018)
    • Sodankylä
Al-Ani et al. (2018)
  • North Ostrobothnia
    • Pudasjärvi
Al-Ani et al. (2018)
  • Pirkanmaa
    • Valkeakoski
[Synchysite-(Nd)] Vorma et al. (1966)
  • Southwest Finland
    • Laitila
[Synchysite-(Ce)] Pavel M. Kartashov analytical data 2019
France
 
  • Auvergne-Rhône-Alpes
    • Haute-Loire
      • Brioude
        • Langeac
          • Marsanges
[Synchysite-(Ce)] Perinet (2014) +1 other reference
    • Isère
      • Grenoble
        • Saint-Christophe-en-Oisans
Valverde J. (1999)
    • Loire
      • Saint-Étienne
        • Saint-Julien-Molin-Molette
Melle A. (2017)
    • Savoie
      • Albertville
        • La Léchère
          • Celliers
De Ascençao Guedes et al. (2000)
[Synchysite-(Ce)] De Ascençao Guedes et al. (2000)
        • Les Belleville
          • Saint-Martin-de-Belleville
            • Le Châtelard
[Synchysite-(Ce)] De Ascenção Guedes et al. (2015)
        • Peisey-Nancroix
[Synchysite-(Ce)] De Ascencão Guedes R. (2004)
        • Sainte-Foy-Tarentaise
De Ascenção Guedes (2003)
      • Saint-Jean-de-Maurienne
        • Jarrier
[Synchysite-(Ce)] De Ascenção Guedes (2012)
        • Val-Cenis
          • Lanslebourg-Mont-Cenis
            • Mont-Cenis Plateau
[Synchysite Group] De Ascenção Guedes et al. (2008)
  • Bourgogne-Franche-Comté
    • Nièvre
      • Château-Chinon
        • Arleuf
[Synchysite-(Ce)] Boisson J.-M. et al. (2023)
  • Nouvelle-Aquitaine
    • Pyrénées-Atlantiques
      • Ossau valley
        • Laruns
          • Fabrèges
[Synchysite-(Ce)] Collection Pascale & Daniel Journet
  • Occitanie
    • Ariège
      • Foix
        • Luzenac
[Synchysite-(Ce)] Gatel (1990)
    • Hautes-Pyrénées
      • Argelès-Gazost
        • Arrens-Marsous
[Synchysite-(Ce)] Pascale & Daniel Journet
      • Bagnères-de-Bigorre
        • Bagnères-de-Bigorre
Ph. Rémy & Ph. Font (2007)
    • Tarn
      • Albi
        • Le Fraysse
          • Bennac
[Synchysite-(Ce)] Castro et al. (2011)
      • Castres
        • Montredon-Labessonnié
          • Peyrebrune
[Synchysite-(Ce)] François Garric collection - Georges ...
[Synchysite-(Ce)] Bernadi (2004)
  • Provence-Alpes-Côte d'Azur
    • Alpes-Maritimes
      • Nice Arrondissement
        • Saint-Martin-Vésubie
[Synchysite-(Ce)] Georges FAVREAU collection & EDX ...
    • Hautes-Alpes
      • Briançon
        • Villar-d'Arêne
[Synchysite-(Ce)] Designolle J-L. (1997)
    • Var
      • Draguignan
        • Fréjus
          • Reyran valley
[Synchysite-(Ce)] Augé et al. (2015) +1 other reference
  • Réunion
    • Cilaos
[Synchysite-(Ce)] André MELLE collection - Georges ...
Gabon
 
  • Moyen-Ogooué Province
[Synchysite Group] Berger et al. (2009)
Germany
 
  • Baden-Württemberg
    • Freiburg Region
      • Lörrach
        • Todtnau
[Synchysite-(Ce)] Walenta (1996)
      • Ortenaukreis
        • Gengenbach
          • Gengenbach
[Synchysite-(Ce)] [Wittern (1995)
        • Haslach im Kinzigtal
          • Steinach
[Synchysite-(Ce)] Walenta (1989) +1 other reference
        • Hausach
          • Hausach
[Synchysite Group] Blaß et al. (1993)
        • Oberwolfach
[Synchysite-(Ce)] Walenta (1992) +1 other reference
      • Rottweil
        • Schenkenzell
          • Wittichen
            • Burgfelsen
[Synchysite-(Ce)] Walenta (1992)
[Synchysite-(Ce)] Walenta (1992)
      • Waldshut
        • Waldshut-Tiengen
          • Detzeln
[Synchysite-(Ce)] Hanneberg et al. (2009) +1 other reference
    • Karlsruhe Region
      • Freudenstadt
        • Alpirsbach
          • Reinerzau mining district
[Synchysite-(Ce)] Walenta (1992)
  • Bavaria
    • Upper Palatinate
      • Tirschenreuth District
        • Erbendorf
[Synchysite-(Ce)] www.mineralienatlas.de (n.d.)
        • Pullenreuth
          • Dechantsees
[Synchysite-(Ce)] Meier (1985) +1 other reference
  • Lower Saxony
    • Göttingen District
      • Bad Grund
        • Bergstadt Bad Grund
[Synchysite-(Y)] Haack et al. (1987)
    • Oder valley
[Synchysite-(Ce)] Gröbner et al. (2011)
  • Rhineland-Palatinate
    • Bad Kreuznach
      • Nahe-Glan
        • Odernheim am Glan
[Synchysite-(Ce)] Hensel (2021)
    • Kusel
      • Kusel-Altenglan
        • Rammelsbach
[Synchysite Group] 56. +1 other reference
  • Saxony-Anhalt
    • Börde
      • Flechtingen
        • Flechtingen
[Synchysite-(Ce)] Witzke et al. (1995)
    • Saalekreis
      • Petersberg
[Synchysite-(Ce)] Wittern (2001)
[Synchysite-(Ce)] Wittern (2001) +2 other references
  • Saxony
    • Erzgebirgskreis
      • Raschau-Markersbach
[Synchysite-(Ce)] Förster (2001)
    • Görlitz District
      • Königshain
[Synchysite-(Ce)] Witzke et al. (2013)
      • Thiemendorf
[Synchysite-(Ce)] Witzke et al. (2013)
    • Mittelsachsen
      • Bobritzsch-Hilbersdorf
[Synchysite-(Ce)] Canadian Mineralogist: 38: 67-80.
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Agios Konstantinos (Kamariza)
          • Kamariza Mines (Kamareza Mines)
[Synchysite-(Ce)] Kolitsch et al. (2015) +2 other references
        • Charakas
          • Charakas mines
[Synchysite-(Ce)] Rieck et al. (2018)
        • Plaka
          • Plaka Mines
[Synchysite-(Ce)] Rieck et al. (2018)
Greenland
 
  • Kujalleq
    • Igaliku
      • Narsaarsuk Plateau
[Synchysite-(Ce)] American Mineralogist (1953) +3 other references
    • Igaliku Complex
Coulson et al. (1996) +1 other reference
[Synchysite-(Ce)] Sørensen (2001) +1 other reference
  • Qeqqata
    • Isortoq Fjord (Søndre Isortoq)
      • Sarfartoq region
Thrane et al. (2014)
[Huanghoite-(Ce)] Thrane et al. (2014)
Hungary
 
  • Baranya County
    • Komló District
      • Komló
[Synchysite-(Ce)] Szakáll et al. (2003) +1 other reference
    • Pécs District
[Synchysite-(Ce)] Sándor Klaj collection
India
 
  • Rajasthan
    • Jodhpur Division
      • Barmer District
[Synchysite-(Ce)] Bhushan (2015) +1 other reference
Israel
 
  • Southern District
    • Beersheba Subdistrict
      • Ramat Negev Regional Council
Bentor (1952) +9 other references
Starinsky et al. (1980) +1 other reference
Italy
 
  • Aosta Valley
    • Courmayeur
[Synchysite-(Ce)] Preite (1992) +1 other reference
[Synchysite-(Ce)] Piccoli et al. (2007)
  • Liguria
    • Genoa
[Synchysite-(Ce)] Pagano et al. (2001)
        • Reppia
[Synchysite-(Ce)] Camarda (2006)
    • Savona Province
      • Magliolo
[Synchysite-(Ce)] Ciriotti et al. (2011)
  • Lombardy
    • Sondrio Province
      • Chiesa in Valmalenco
[Synchysite-(Ce)] Marchesini et al. (2025)
      • Madesimo
[Synchysite-(Ce)] Bedogné et al. (1995)
      • Torre di Santa Maria
[Synchysite-(Ce)] Vanini et al. (2020)
    • Varese Province
[Synchysite-(Y)]
        • Cavagnano
[Synchysite-(Ce)] Collection of Barry Murphy
[Synchysite-(Ce)] imgdb.amiminerals.it (n.d.) +1 other reference
[Synchysite Group] Fabio Brignoli collection 2010
[Synchysite-(Ce)] imgdb.amiminerals.it (n.d.)
        • Cuasso al Piano
[Synchysite-(Ce)] Gentile et al. (2023)
[Synchysite Group] Domenico Preite collection
  • Piedmont
    • Biella Province
      • Curino
[Synchysite-(Ce)] Martini et al. (2010)
    • Cuneo Province
Piccoli et al. (2004)
      • Bagnolo Piemonte
[Synchysite-(Ce)] Piccoli (2002) +1 other reference
[Synchysite-(Ce)] Piccoli et al. (2007)
[Synchysite-(Ce)] Campostrini et al. (2023)
      • Entracque
[Synchysite-(Ce)] Piccoli (2002) +2 other references
[Synchysite-(Ce)] Piccoli (2002) +2 other references
[Synchysite-(Ce)] Piccoli (2002) +1 other reference
[Synchysite-(Ce)] Piccoli (2002)
      • Sambuco
[Synchysite-(Ce)] Piccoli et al. (2007)
      • Vinadio
        • Bagni di Vinadio Valley (Corborant Valley)
[Synchysite-(Ce)] Piccoli et al. (2007)
Flavio Giuseppe Taricco collection - ...
        • Sant’Anna Valley
Piccoli et al. (2007)
    • Metropolitan City of Turin
      • Bussoleno
Flavio G. Taricco collection
      • Luserna San Giovanni
[Synchysite-(Ce)] Giuseppe Finello collection
[Synchysite-(Ce)] Finello et al. (2007) +1 other reference
      • Meana di Susa
[Synchysite-(Ce)] Piccoli et al. (2007)
      • Oulx
        • Signols
- (n.d.)
    • Verbano-Cusio-Ossola Province
      • Baceno
        • Devero Alp
Klemm et al. (2004)
[Synchysite-(Ce)] Graeser et al. (1995) +2 other references
[Synchysite-(Ce)] Albertini (1991) +1 other reference
[Synchysite-(Ce)] Piccoli et al. (2007)
      • Baveno
        • Oltrefiume
[Synchysite-(Ce)] Sergio Varvello collection
Sergio Varvello collection
      • Beura-Cardezza
[Synchysite-(Ce)] Huen et al. (1969) +1 other reference
R.M.I. 1997 n. 2 pg. 157 to 170 / ...
Bruno Marello collection
[Synchysite-(Ce)] Piccoli et al. (2007)
      • Formazza
        • Vallone del Vannino
[Synchysite-(Ce)] Sergio Varvello collection
      • Mergozzo
[Synchysite-(Ce)] Gramaccioli (1975) +1 other reference
      • Montecrestese
[Synchysite-(Y)] 'Apatite' - Monazite- (Ce)
      • Omegna
        • Brughiere
[Synchysite-(Ce)] //doi.org/10.57635/MICRO.2025.23.20
      • Premia
[Synchysite-(Ce)] Brambilla A. (1986)
      • Stresa
[Synchysite-(Ce)] Sergio Varvello collection
      • Varzo
[Synchysite-(Ce)] Cuchet et al. (2016)
[Synchysite-(Ce)] Cuchet et al. (2016)
[Synchysite-(Ce)] Cuchet et al. (2016)
[Synchysite-(Ce)] Cuchet et al. (2016)
[Synchysite-(Ce)] Cuchet et al. (2016) +1 other reference
[Synchysite-(Ce)] Cuchet et al. (2016)
[Synchysite-(Ce)] Cuchet et al. (2016)
[Synchysite-(Ce)] Cuchet et al. (2022)
[Synchysite-(Ce)] Cuchet et al. (2022)
[Synchysite-(Ce)]
      • Villadossola
[Synchysite-(Ce)] Rivista Mineralogica Italiana
  • Sardinia
    • Metropolitan City of Cagliari
      • Sarroch
[Synchysite-(Ce)] Orlandi et al. (2013) +1 other reference
    • Nuoro Province
      • Tortolì
        • Arbatax
Domenico Preite collection
    • South Sardinia Province
      • Fluminimaggiore
[Synchysite-(Y)] Stara et al. (1996)
      • Gonnosfanadiga
        • Fenugu Sibiri Mine
[Synchysite-(Ce)] Caboni et al. (2018)
[Synchysite-(Ce)] Stara et al. (1996)
[Synchysite-(Ce)] Sabelli (2000)
[Synchysite-(Ce)] Mondillo et al. (2016)
[Synchysite-(Ce)] Mondillo et al. (2016) +1 other reference
  • Trentino-Alto Adige (Trentino-South Tyrol)
    • South Tyrol
      • Wipptal (Alta Vall'Isarco)
        • Pfitsch (Val di Vizze)
          • Sankt Jakob (San Giacomo)
            • Oberbergtal
[Synchysite-(Ce)] collection Manuele Moro
[Synchysite-(Ce)] Folie et al. (2010)
            • Vizze Pass (Pfitsch Pass; Pfitscher Joch)
[Synchysite-(Ce)] Folie et al. (2010)
[Synchysite-(Ce)] Folie et al. (2010)
[Synchysite-(Ce)] Buscaroli et al. (1994)
    • Trento Province
      • Canal San Bovo
        • Vanoi Valley
          • Pralongo
[Synchysite-(Ce)] Ferretti et al. (2015)
      • Frassilongo
        • Roveda
[Synchysite-(Ce)] Ferretti et al. (2018)
De Michele (1974)
[Synchysite-(Ce)] Vecchi et al. (2013)
[Synchysite-(Ce)] Frizzo et al. (2010)
Ref: Daniele Ravagnani - I giacimenti ...
      • Roncegno Terme
[Synchysite-(Ce)] Bortolozzi et al. (2013) +1 other reference
  • Tuscany
    • Livorno Province
      • Campo nell'Elba
        • San Piero in Campo
[Synchysite-(Ce)] Orlandi et al. (1997)
      • Capoliveri
Bortolozzi (n.d.)
[Synchysite Group] Bortolozzi (n.d.)
    • Lucca Province
      • Minucciano
        • Gorfigliano
[Synchysite-(Ce)] Orlandi P. et al. (LU)
  • Veneto
    • Vicenza Province
      • Torrebelvicino
        • Monte Naro
          • Monte Naro - Riolo Valley side
            • Contrada Trentini
[Synchysite-(Ce)] Atti della giornata di Studio – ...
Japan
 
  • Ehime Prefecture
    • Imabari City
[Synchysite-(Ce)] 皆川鉄雄 et al. (2001)
  • Fukuoka Prefecture
    • Tagawa-gun
      • Kawasaki
[Synchysite-(Ce)] Kitamura & Uehara (2000)
  • Fukushima Prefecture
    • Date District
      • Kawamata
        • Iizaka Village (Iisaka)
[Synchysite-(Y)] Kato (1973) +2 other references
  • Mie Prefecture
    • Mie District
      • Komono town
        • Yunoyama-onsen
[Synchysite-(Y)] Nishio–Hamane et al. (2022)
Kazakhstan
 
  • Karaganda Region
    • Karkaraly
[Synchysite-(Ce)]
Kenya
 
  • Baringo County
RIDOLFI et al. (2006)
  • Homa Bay County
    • Wasaki Peninsula Carbonatites
Le Bas (1977)
  • Kericho County
Onuonga et al. (2000)
Kosovo
 
  • Peć District
    • Klina (Klinë)
[Synchysite-(Nd)] Maksimović et al. (1978) +2 other references
Kyrgyzstan
 
  • Talas Region
    • Ak-Tyuz ore Field
[Synchysite-(Ce)]
Dill (1999)
Madagascar
 
  • Amoron'i Mania
    • Ambositra District
      • Tsarasaotra
Berger et al. (2014)
  • Diana
    • Ambanja District
      • Antsirabe
[Synchysite-(Ce)] Estrade (2014)
[Synchysite-(Ce)] Estrade et al. (2014)
        • Betaimboay
          • Unnamed caldera
[Synchysite-(Ce)] Wolfgang Hampel (2011)
Malawi
 
  • Northern Region
    • Chitipa
Malunga et al. (1991, January)
  • Southern Region
    • Balaka
[Synchysite-(Y)] Orris et al. (2002)
    • Phalombe
Garson (1963) +1 other reference
[Synchysite-(Ce)] Broom-Fendley et al. (2017)
[Synchysite-(Ce)] Ngwenya (1994)
    • Zomba
[Synchysite-(Ce)] Guastoni et al. (2009)
[Synchysite-(Ce)] Dowman et al. (2017)
Mali
 
  • Kayes Region
    • Kayes Cercle
Masurel et al. (2017)
  • Kidal Region
    • Tessalit Cercle
[Synchysite-(Y)] Orris et al. (2002)
Mongolia
 
  • Dornogovi Province
    • Khatanbulag District
[Synchysite-(Ce)] Pavel.M. Kartashov (n.d.) +1 other reference
    • Mandakh District
Dostal et al. (2023)
  • Khovd Province
    • Myangad District
[Synchysite-(Ce)] G.M. Tsareva data +3 other references
Park et al. (2021) +3 other references
[Synchysite-(Ce)] Pavel.M. Kartashov (n.d.)
  • Ömnögovi Province
    • Khan khongor District
Dostal et al. (2023)
    • Khanbogd District
[Synchysite-(Ce)] N.V. Vladykin data
[Synchysite-(Ce)] Jindrich Kynicky
    • Mandal-Ovoo District
      • Shara Hulasa Hiid
Dostal et al. (2023)
Morocco
 
  • Dakhla-Oued Ed-Dahab Region
    • Oued Ed-Dahab Province
Malainine et al. (2025)
  • Drâa-Tafilalet Region
    • Midelt Province
      • Midelt Cercle
        • Aït Oufella Caïdat
          • Amersid
[Synchysite-(Ce)] Khadem Allah (1993) +1 other reference
Jeremine et al. (1947) +9 other references
Namibia
 
  • Kunene Region
    • Epupa
      • Epembe Complex
Zimmermann et al. (2016)
    • Khorixas
[Synchysite-(Ce)] Wall et al. (2008) +1 other reference
  • Otjozondjupa Region
    • Otjiwarongo Constituency
Kogut et al. (1998) +1 other reference
  • ǁKaras Region
    • Karasburg West
[Synchysite-(Y)] Orris et al. (2002)
    • ǃNamiǂNûs Constituency
Walter et al. (2022)
New Zealand
 
  • Otago Region
    • Queenstown-Lakes District
      • Makarora
Cooper (2020)
Niger
 
  • Agadez
    • Tchirozerine
consequences. Bulletin de la Société géologique de France (6) +4 other references
Woolley (2001)
Norway
 
  • Agder
    • Gjerstad
[Synchysite Group] Kristiansen (1974) +2 other references
  • Akershus
    • Asker
      • Hurum
        • Grønsand
Atle Michalsen Collection
Gunnar Raade (1969)
    • Lunner
[Synchysite-(Ce)] Kvamsdal (1998)
      • Harestua
        • RV 4 roadcuts
Werner (2003)
      • Øståsen
[Synchysite-(Ce)] Kvamsdal (1998)
  • Buskerud
    • Drammen
      • Åssiden
[Synchysite-(Ce)] Gunnar Raade (1969) +1 other reference
      • Mjøndalen
[Synchysite-(Ce)] Nordrum (2001)
    • Kongsberg
      • Overberget Mining Field
[Synchysite Group] Sæbø et al. (1961)
[Synchysite Group] Johnsen (1986)
  • Innlandet
    • Gran
[Synchysite-(Ce)] Werner (1993)
  • Nordland
    • Hamarøy
      • Drag
        • Lapplægeret
[Synchysite-(Nd)] Husdal (2011)
      • Finnøya
[Synchysite-(Y)] Husdal (2021)
    • Narvik
[Synchysite-(Ce)] Husdal (2008)
[Synchysite-(Y)] Husdal (2008) +1 other reference
  • Oslo
    • Grorud
      • Bånkall
[Synchysite-(Ce)] SEM-EDS Mineralogical Museum
    • Oslomarka
[Synchysite Group] Kvamsdal (2018)
      • Maridalen
Kvamsdal (2024)
[Synchysite-(Ce)] Raade (1972)
  • Svalbard
    • Spitsbergen
      • Hornsund
[Synchysite-(Ce)] Pršek et al. (2010)
  • Telemark
    • Drangedal
      • Tørdal
[Synchysite-(Y)] Kristiansen (1998)
    • Nome
[Synchysite-(Ce)] Neumann (1985)
[Synchysite-(Nd)] Andersen (1986)
      • Søve Mines
Andersen (1984)
  • Vestfold
    • Holmestrand
      • Sande
[Synchysite-(Ce)] Hermann Fylling
[Synchysite-(Ce)] Larsen (1994)
    • Horten
[Synchysite-(Ce)] Knut Edvard Larsen MM-collection (#743)
      • Skoppum
[Synchysite-(Ce)] Knut Edvard Larsen collection
    • Larvik Commune
      • Tvedalen
        • Tuften
[Synchysite-(Ce)] Andresen et al. (2020)
    • Tønsberg
[Synchysite-(Ce)] Larsen et al. (2004)
      • Sem
        • Frestiåsen Quarry
[Synchysite-(Ce)] Knut Edvard Larsen collection # MM-1576
      • Undrumsdal
[Synchysite-(Ce)] Larsen et al. (2004)
  • Vestland
    • Sogndal
Werner (1993)
    • Stad
      • Eid
[Synchysite-(Ce)] Werner (1993)
[Synchysite-(Ce)] Werner (1993)
    • Sunnfjord
      • Gaular
        • Sande
[Synchysite-(Ce)] Samuelsen (1993)
Pakistan
 
  • Khyber Pakhtunkhwa Province
    • Peshawar District
      • Hameed Abad Kafoor Dheri
[Synchysite-(Ce)] Gressman (2018)
Paraguay
 
  • Alto Paraguay Department
Comin-Chiaramonti et al. (2016)
  • Amambay Department
Piero Comin-Chiaramonti (1996)
Peru
 
  • Amazonas
    • Bongará Province
      • Yambrasbamba
        • Bongara Project
Santoro et al. (2020)
Poland
 
  • Lower Silesian Voivodeship
[Synchysite-(Ce)] Mineralogia Polonica Vol. 29 (2)
    • Świdnica County
      • Gmina Dobromierz
[Synchysite-(Ce)] JANECZEK J. et al. (Ce)
[Synchysite-(Ce)] Körber et al. (2005)
  • Podlaskie Voivodeship
Volume 26 +19 other references
    • Tajno Podjeziorne
Pańczyk et al. (2015)
Portugal
 
  • Madeira
    • Madeira Island
      • Machico
        • Porto da Cruz
[Synchysite-(Ce)] Alves (n.d.)
Romania
 
  • Harghita County
[Synchysite-(Ce)] Hirtopanu (2006)
[Synchysite-(Ce)] Szakáll et al. (2010)
Russia
 
  • Buryatia
    • Baunt District
[Synchysite-(Ce)] Doroshkevich et al. (2007)
  • Chelyabinsk Oblast
    • Ilmen Mountains
[Synchysite-(Ce)] Чередниченко et al. (2014)
    • Kyshtym
[Synchysite-(Ce)] Kasatkin et al. (2020)
    • Verkhneuralsky District
      • Uzelga VHMS deposits
        • Mezhozerny settlement
Safina +8 other references
    • Vishnevye Mountains
      • Buldym Lake
[Synchysite-(Ce)] Попова et al. (2019)
      • Dolgaya Mt.
[Synchysite-(Ce)] Kasatkin et al. (2019) +1 other reference
  • Irkutsk Oblast
    • Beloziminskoe
[Huanghoite-(Ce)] Попова et al. (2019)
[Synchysite-(Ce)] Savel'eva V.B. Karmanov N.S. (2008) +1 other reference
    • Vitim Plateau
      • Biraya and Bya Rivers confluence area (Chara Basin)
        • Biraya Fe-REE ore occurrence
[Huanghoite-(Ce)] Anatoly Kasatkin analytical data
  • Kabardino-Balkaria
    • Chereksky District
Kaigorodova (2017)
  • Khabarovsk Krai
    • Nanaysky District
Bukhanova et al. (2019)
  • Khanty-Mansi Autonomous Okrug
    • Berezovo district
      • Saranpaul
[Synchysite-(Ce)] Burlakov (1999)
  • Krasnoyarsk Krai
    • Boguchansky District
      • Chadobets alkaline complex
[Synchysite-(Ce)] Sharygin +10 other references
[Synchysite-(Ce)] Prokopyev +4 other references
    • Kuragin District
[Synchysite-(Ce)] Kolotilina et al. (2024)
    • Western Sayan range
Bolonin et al. (2009)
  • Murmansk Oblast
[Huanghoite-(Ce)] ...
      • Kukisvumchorr Mt
[Synchysite-(Ce)] Lapis 28 (12)
          • 252 m level
[Synchysite-(Ce)] Pekov et al. (2003) +2 other references
[Synchysite-(Ce)] Volume 2: Minerals [Минералы]. Nauka et al. (in Russian) +8 other references
[Huanghoite-(Ce)] Pavel.M. Kartashov (n.d.)
    • Northern Karelia
      • Vuoriyarvi alkaline-ultrabasic massif
[Synchysite-(Ce)] Kozlov +9 other references
  • Sakha
[Huanghoite-(Ce)] Belovitskaya et al. (2004)
[Synchysite-(Ce)] Pavel.M. Kartashov (n.d.)
    • Polar Yakutia
[Hydroxylsynchysite-(Ce)] Pavel.M. Kartashov (n.d.)
  • Tuva
[Synchysite-(Ce)] Doroshkevich et al. (2016)
[Synchysite-(Ce)] Pavel M. Kartashov data of 2015
  • Ural Mountains
Hyršl (1992)
    • Southern Urals
      • Bashkir Meganticlinorium
[Synchysite-(Ce)] Kovalev et al. (2023)
Saudi Arabia
 
  • Medina Region
[Synchysite-(Y)] Drysdall et al. (1984)
Slovakia
 
  • Banská Bystrica Region
    • Rimavská Sobota District
      • Tisovec
[Synchysite-(Ce)] Ondrejka M. et al. (Western Carpathians, Slovakia)
  • Košice Region
    • Rožňava District
[Synchysite-(Ce)] Koděra (1986)
    • Spišská Nová Ves District
      • Hnilčík
[Synchysite-(Ce)] Uher P. et al. (2010)
  • Trenčín Region
    • Považská Bystrica District
      • Stupné
[Synchysite-(Ce)] Uher et al. (Y) +1 other reference
South Africa
 
  • Limpopo
    • Mopani District Municipality
      • Ba-Phalaborwa Local Municipality
        • Phalaborwa
[Synchysite-(Ce)] Giebel et al. (2017)
    • Sekhukhune District Municipality
      • Elias Motsoaledi Local Municipality
        • Groblersdal
[Synchysite-(Nd)] Atanasova et al. (2016)
    • Waterberg District Municipality
      • Mogalakwena Local Municipality
        • Mokopane
          • Zaaiplaats tin field
[Synchysite-(Ce)] Palache et al. (1951)
      • Thabazimbi Local Municipality
        • Thabazimbi
Harmer et al. (2016)
[Synchysite-(Ce)] Cairncross et al. (1995)
  • North West
    • Bojanala Platinum District Municipality
      • Moses Kotane Local Municipality
        • Pilanesberg Alkaline Ring Complex
Clarke (1989)
    • Ngaka Modiri Molema District Municipality
      • Ramotshere Moiloa Local Municipality
[Synchysite-(Ce)] VERWOERD (1993)
South Korea
 
  • North Chungcheong Province
    • Chungju City
      • Joongwon-gun
        • Mt. Eorae
[Synchysite-(Ce)] Pavel.M. Kartashov (n.d.)
Spain
 
  • Andalusia
    • Almería
      • Adra
[Synchysite-(Ce)] Christian Rewitzer collection 2007 / ... +1 other reference
[Synchysite-(Ce)] Miguel A. Fernandez Périz (2006)
  • Canary Islands
    • Las Palmas Province
[Synchysite-(Ce)] Ковальчук et al. (2014)
  • Catalonia
    • Lleida
      • Pallars Jussà
        • La Vall Fosca
          • La Torre de Cabdella
Màrius Asensi-Jordà Collection
      • Pallars Sobirà
[Synchysite-(Ce)] Calvo (2012)
    • Tarragona
      • Priorat
        • Falset
[Synchysite-(Ce)] Dr Joan Abella i Creus (2019)
  • Galicia
    • Pontevedra
      • Porriño
[Synchysite-(Ce)] Calvo et al. (2009)
Sweden
 
  • Dalarna County
    • Ludvika
      • Grängesberg
        • Grängesberg mining field
[Synchysite-(Ce)] Jonsson (2011)
  • Jämtland County
Lindh (2012)
  • Norrbotten County
    • Kiruna
[Synchysite-(Ce)] Knut Edvard Larsen collection # 3296 ( Ex Torbjörn Lorin collection)
  • Örebro County
    • Nora
      • Rödberg Mines
[Synchysite-(Ce)] Andersson et al. (2024)
    • Örebro
[Synchysite-(Ce)] Jonsson +3 other references
  • Stockholm County
    • Nynäshamn
[Synchysite-(Y)] Otter (2003)
[Synchysite-(Ce)] Jonsson (1992)
  • Västernorrland County
    • Sundsvall
[Synchysite Group] Kresten (1990)
[Synchysite Group] Sandström et al. (2010)
  • Västmanland County
    • Köping
[Synchysite-(Ce)]
    • Norberg
      • Getback ore field
[Synchysite-(Ce)] Andersson et al. (2024)
[Synchysite-(Ce)] Andersson et al. (2024)
[Synchysite-(Ce)] Andersson et al. (2024)
    • Skinnskatteberg
      • Riddarhyttan
        • Bastnäs Mines
[Synchysite-(Ce)] Andersson et al. (2024)
[Synchysite-(Ce)] Andersson et al. (2024)
Switzerland
 
  • Aargau
    • Zurzach
      • Leuggern
[Synchysite-(Ce)] Stalder et al. (1998)
  • Bern
Stalder et al. (1998)
    • Interlaken-Oberhasli
      • Guttannen
        • Oberaar power station
[Synchysite-(Ce)] Stalder et al. (1998)
  • Grisons
    • Calanda
      • Taminser Calanda
Die Mineralien der Schweiz +1 other reference
    • Surselva Region
      • Lumnezia
        • Vrin
[Synchysite-(Ce)] Stalder et al. (1998)
      • Medel (Lucmagn)
        • Val Medel
          • Val Cristallina
            • Val Casatscha
[Synchysite-(Ce)] Stalder et al. (1998)
      • Tujetsch
[Synchysite-(Ce)] collection Joachim Esche
[Synchysite-(Ce)] Stalder et al. (1998)
[Synchysite-(Ce)] Stalder et al. (1998)
  • Ticino
    • Leventina
      • Airolo
Franco Ponte collection
      • Bedretto
        • Ronco
[Synchysite-(Ce)] Kipfer et al. (1979) +1 other reference
      • Faido
        • Chiggiogna
[Synchysite-(Ce)] Stalder et al. (1998)
[Synchysite-(Ce)] Stalder et al. (1998)
    • Lugano
      • Carona
[Synchysite-(Ce)] Stalder et al. (1998)
    • Riviera
      • Riviera
        • Lodrino
[Synchysite-(Ce)] Weiß (1982) +1 other reference
  • Uri
    • Urseren
      • Realp
        • Tiefenbach
aufschluss-1971-09-286
  • Valais
    • Brig
      • Brig-Glis
        • Nessel Valley
[Synchysite-(Ce)] Cuchet et al. (2022)
      • Zwischbergen
        • Alpje
[Synchysite-(Ce)] Cuchet et al. (2022)
    • Entremont
      • Orsières
        • Ferret Valley
          • La Fouly
[Synchysite-(Ce)] Cuchet et al. (2003) +1 other reference
    • Goms
      • Binn
[Synchysite-(Ce)] Cuchet et al. (2017)
[Synchysite-(Ce)] van der Burgt et al. (2005)
        • Geisspfad area
Uwe Kolitsch collection
[Synchysite-(Ce)]
[Synchysite-(Ce)] Stalder et al. (1998)
[Synchysite-(Ce)] Cuchet et al. (2014)
      • Fieschertal
        • Burg - Fiesch Glacier area
[Synchysite-(Ce)] Stalder et al. (1998)
      • Goms
        • Reckingen
          • Blinnen Valley
Georg Prock collection (https://www.mineralienatlas.de/lexikon/index.php/Genehmigungen/Georg%20Prock#Medientabelle100)
      • Obergoms
        • Oberwald
[Synchysite-(Ce)] Stalder et al. (1998)
        • Ulrichen
[Synchysite-(Ce)] Stalder et al. (1998)
    • Martigny
      • Mont Chemin mining district
[Synchysite-(Ce)]
[Synchysite-(Ce)] Stalder et al. (1998)
[Synchysite-(Ce)] Ansermet (2001)
[Synchysite-(Ce)]
[Synchysite-(Ce)] Stalder et al. (1998)
      • Trient
[Synchysite-(Ce)] Stalder et al. (1998)
    • Östlich Raron
      • Grengiols
        • Chummibort
[Synchysite-(Ce)] Cuchet et al. (2005)
[Synchysite-(Ce)] Cuchet et al. (2014)
[Synchysite-(Ce)] Cuchet et al. (2014)
      • Mörel-Filet
        • Mörel
[Synchysite-(Ce)] Stalder et al. (1998)
    • Saint-Maurice
      • Salvan
        • Van d'en Haut
[Synchysite-(Ce)] Stalder et al. (1998)
    • Visp
      • Baltschieder
[Synchysite-(Ce)] Stalder et al. (1998)
    • Westlich Raron
[Synchysite-(Ce)] www.mineralien-ch.ch (2008)
      • Niedergesteln
[Synchysite-(Ce)] Stalder et al. (1998)
Tanzania
 
  • Mbeya Region
    • Mbeya
Mgonde (1994)
  • Songwe Region
Harmer et al. (2016)
UK
 
  • England
    • Cumbria
      • Eden
        • Shap Rural
[Synchysite-(Ce)] M.Wirth collection (Manchester Univ.)
    • Devon
      • West Devon
        • Peter Tavy
          • Devon United Mines
[Synchysite-(Ce)] Rumsey et al. (2008)
  • Scotland
    • Aberdeenshire
      • Rhynie
Parnell et al. (2023)
    • Highland
      • Eilean á Chèo
        • Isle of Skye
          • Luib
S Rust collection
  • Wales
    • Gwynedd
      • Ffestiniog
[Synchysite-(Ce)]
[Synchysite-(Ce)]
        • Tanygrisiau
[Synchysite-(Ce)]
[Synchysite-(Ce)] Green et al. (1996)
    • Powys
      • Old Radnor
[Synchysite-(Ce)] Hubbard et al. (2008) +1 other reference
Ukraine
 
  • Zhytomyr Oblast
    • Korosten Raion
Liventseva (n.d.)
    • Zhytomyr Raion
[Synchysite-(Ce)] Lyckberg et al. (2009)
USA
 
  • Alaska
    • Prince of Wales-Hyder Census Area
      • Ketchikan Mining District
        • Prince of Wales Island
          • Bokan Mountain
Philpotts et al. (1998)
[Synchysite Group] - (2008)
  • Arizona
    • Mohave County
      • Cerbat Mountains
        • Wallapai Mining District
Brown (2010)
  • Arkansas
    • Hot Spring County
      • Magnet Cove
[Synchysite Group] Berger et al. (2009)
[Synchysite-(Ce)] R&M 67:6 p402-404
    • Pulaski County
      • Little Rock
        • Granite Mountain area
[Synchysite Group] Henry Barwood - unpublished (2010)
  • California
    • Riverside County
      • Jurupa Valley
        • Jurupa Mountains
DeVito et al. (1984)
    • San Bernardino County
      • Clark Mts (Clark Mountain Range)
        • Mountain Pass District
          • Mountain Pass
[Synchysite Group] USGS Bulletin 2160
  • Colorado
    • Fremont County
      • Cotopaxi Mining District
        • Cotopaxi
          • Cotopaxi Pegmatite area
[Synchysite-(Y)] Eckel et al. (1997)
      • Iron Mountain complex
[Synchysite-(Ce)] Eckel et al. (1997)
[Synchysite-(Ce)] Eckel et al. (1997)
[Synchysite-(Ce)] Eckel et al. (1997)
      • McClure Mountain Complex
Armbrustmacher (1988)
    • Gunnison County
      • Goose Creek Mining District
- (2005)
- (2005)
      • White Earth Mining District (Powderhorn Mining District)
[Synchysite-(Ce)] Eckel et al. (1997)
    • Jefferson County
      • South Platte Pegmatite Mining District
[Synchysite-(Y)] Simmons et al. (1980)
[Synchysite-(Y)] Eckel et al. (1997)
[Synchysite-(Y)] Simmons et al. (1980)
[Synchysite-(Y)] Simmons et al. (1980)
[Synchysite-(Y)] Eckel et al. (1997)
[Synchysite-(Y)] Simmons et al. (1980)
    • Teller County
[Synchysite-(Y)] Eckel et al. (1997)
[Synchysite-(Y)] Simmons et al. (1980)
  • Connecticut
    • Fairfield County
      • Stratford
King (n.d.)
    • Litchfield County
      • Harwinton
[Synchysite-(Y)] Robert Wilken collection
      • Torrington (Wolcottville)
[Synchysite Group] Field observations July 2020
  • Idaho
    • Lemhi County
[Synchysite-(Y)] USGS PP1049-A (Staatz,1979)
  • Illinois
    • Hardin County
      • Hicks
Trela et al. (2024)
[Synchysite-(Ce)] in Lasemi et al. (2011)
  • Maine
    • Aroostook County
      • Pennington Mountain
Wang et al. (2023) +2 other references
  • Massachusetts
    • Norfolk County
[Synchysite-(Ce)] Smith +3 other references
[Synchysite-(Ce)] Vandall King
  • Michigan
    • Marquette County
      • Republic
[Synchysite-(Y)] Buchholz et al. (2013)
    • Ontonagon County
      • White Pine
[Synchysite-(Ce)] Morris (1983) +1 other reference
  • Missouri
    • Washington County
Sherwood et al. (1998)
  • Montana
[Synchysite-(Y)] Palache et al. (1951)
      • Mineral Point Mining District
Gammons et al. (2024)
  • Nebraska
    • Johnson County
      • Elk Creek
Verplanck et al. (2022)
  • New Hampshire
    • Carroll County
      • Conway
        • Redstone
Caruso +1 other reference
      • Wakefield
[Synchysite-(Ce)] T Mortimer (mindatnh.org)
    • Hillsborough County
      • Nashua
[Synchysite-(Ce)]
  • New Jersey
    • Morris County
      • Mine Hill
[Synchysite-(Y)] Klemic +4 other references
    • Sussex County
      • Franklin
        • Franklin Mine
[Synchysite-(Ce)] King
[Synchysite-(Ce)] Analysis by Andy Roberts. +1 other reference
  • New York
    • St. Lawrence County
      • Pierrepont
[Synchysite-(Ce)] Chamberlain et al. (2013)
[Synchysite-(Ce)] Steve Chamberlain et al (2009)
Steven C. Chamberlain and David G. Bailey (2012)
      • Rossie
[Synchysite-(Ce)] Steven C. Chamberlain and David G. Bailey (2012)
[Synchysite-(Ce)] Chamberlain et al. (2001)
  • Texas
    • Hudspeth County
      • Sierra Blanca Peaks
Elliott (2018)
    • Llano County
      • Llano
[Synchysite-(Y)] Smith (1991)
  • Vermont
    • Windham County
Johannes Swarts collection
[Synchysite-(Ce)] Johannes Swarts collection
      • Westminster
[Synchysite-(Ce)] Johannes Swarts collection
  • Virginia
    • Augusta County
      • Parnassus
[Synchysite-(Ce)] csmres.jmu.edu (n.d.) +2 other references
      • West Augusta
[Huanghoite-(Ce)] Robin D. Tibbit (deceased)
  • Washington
    • Okanogan County
Markus B. Raschke et al. (2016)
[Synchysite-(Ce)] Micro Probe Volume VI Number 8
  • Wisconsin
    • Marathon County
Falster (1981)
  • Wyoming
    • Albany County
[Synchysite-(Ce)] ...
    • Crook County
Van Rythoven et al. (2020)
Van Rythoven et al. (2020) +1 other reference
Van Rythoven et al. (2020)
Andersen et al. (2017)
M. Moore (2010) +1 other reference
Vietnam
 
  • Lai Châu Province
    • Phong Tho District
      • Mt Fansipan
        • Nâm Nâm Xe REE deposit
[Synchysite-(Ce)] Färber (n.d.)
[Synchysite-(Ce)] Collection of NHM +4 other references
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